net: hns: Fix memleak in hns_nic_dev_probe

[ Upstream commit 100e3345c6e719d2291e1efd5de311cc24bb9c0b ]

hns_nic_dev_probe allocates ndev, but not free it on
two error handling paths, which may lead to memleak.

Fixes: 63434888aaf1b ("net: hns: net: hns: enet adds support of acpi")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 24a8159..796f811 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1990,8 +1990,10 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
                        priv->enet_ver = AE_VERSION_1;
                else if (acpi_dev_found(hns_enet_acpi_match[1].id))
                        priv->enet_ver = AE_VERSION_2;
-               else
-                       return -ENXIO;
+               else {
+                       ret = -ENXIO;
+                       goto out_read_prop_fail;
+               }
 
                /* try to find port-idx-in-ae first */
                ret = acpi_node_get_property_reference(dev->fwnode,
@@ -2003,7 +2005,8 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
                priv->fwnode = acpi_fwnode_handle(args.adev);
        } else {
                dev_err(dev, "cannot read cfg data from OF or acpi\n");
-               return -ENXIO;
+               ret = -ENXIO;
+               goto out_read_prop_fail;
        }
 
        ret = device_property_read_u32(dev, "port-idx-in-ae", &port_id);